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This threader chain is fully adjustable features a 1.1mm cable chain with threader and easy add and remove slides, dangle, charm, pendant and more of all sizes to create something new everyday. Add your dangle charms or add layer it with other necklace.
Since the varying densities of different stone materials and also the varying depths of different cutting styles can result in a significantly different, even between stones with a similar carat weight.
Estimating Weights for Standard Faceted Cut Gemstones
Rounds | ![]() |
Squares / Pricess |
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Ovals | ![]() |
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Size | Weight | Size | Weight | Size | Weight |
1.6 mm | .02 carat | 5 mm | .75 carat | 5 x 3 mm | .25 carat |
2 mm | .03 carat | 6 mm | 1.3 carat | 6 x 4 mm | .5 carat |
2.5 mm | .06 carat | 7 mm | 2.05 carat | 7 x 5 mm | 1.0 carat |
3 mm | .10 carat | 8 mm | 2.9 carat | 8 x 6 mm | 1.5 carat |
3.5 mm | .16 carat | 9 mm | 4.4 carat | 9 x 7 mm | 2.5 carat |
4 mm | .25 carat | 10 mm | 6.0 carat | 10 x 8 mm | 3.0 carat |
4.5 mm | .33 carat | 11 mm | 8.0 carat | 11 x 9 mm | 4.0 carat |
5 mm | .50 carat | 12 mm | 10.35 carat | 12 x 10 mm | 5.0 carat |
5.5 mm | .65 carat | 13 mm | 13.2 carat | 14 x 10 mm | 6.0 carat |
6 mm | .75 carat | 14 mm | 16.5 carat | 14 x 12 mm | 8.0 carat |
6.5 mm | 1.0 carat | 15 mm | 20.25 carat | 16 x 12 mm | 10.5 carat |
7 mm | 1.25 carat | 16 mm | 24.6 carat | 18 x 13 mm | 14.2 carat |
8 mm | 2.0 carat | ||||
9 mm | 2.75 carat | ||||
10 mm | 3.5 carat | ||||
11 mm | 4.6 carat | ||||
12 mm | 6.0 carat | ||||
13 mm | 7.75 carat | ||||
14 mm | 9.65 carat | ||||
15 mm | 11.85 carat | ||||
16 mm | 16 carat | ||||
17 mm | 17.25 carat | ||||
18 mm | 20.5 carat | ||||
19 mm | 24.0 carat | ||||
20 mm | 28.0 carat | ||||
21 mm | 34.8 carat | ||||
22 mm | 41.8 carat | ||||
23 mm | 49.8 carat | ||||
24 mm | 57.9 carat | ||||
25 mm | 68.7 carat |
Emerald | ![]() |
Pear | ![]() |
Marquis | ![]() |
---|---|---|---|---|---|
6 x 4 mm | .5 carat | 6 x 5 mm | .7 carat | 4 x 2 mm | .10 carat |
7 x 5 mm | 1.0 carat | 7 x 5 mm | .75 carat | 5 x 2.5 mm | .25 carat |
8 x 6 mm | 1.5 carat | 8 x 5 mm | 1.0 carat | 6 x 3 mm | .30 carat |
9 x 7 mm | 2.5 carat | 9 x 6 mm | 1.5 carat | 8 x 4 mm | .75 carat |
10 x 8 mm | 3.0 carat | 10 x 7 mm | 2.0 carat | 10 x 5 mm | 1.0 carat |
11 x 9 mm | 4.0 carat | 11 x 7 mm | 2.25 carat | 12 x 6 mm | 2.0 carat |
12 x 10 mm | 5.0 carat | 12 x 8 mm | 3.0 carat | 14 x 7 mm | 3.0 carat |
14 x 10 mm | 6.0 carat | 13 x 9 mm | 3.5 carat | 16 x 8 mm | 4.0 carat |
14 x 12 mm | 8.0 carat | 15 x 10 mm | 5.5 carat | 18 x 9 mm | 6.0 carat |
16 x 12 mm | 10.5 carat | 16 x 12 mm | 8.6 carat | 20 x 10 mm | 8.5 carat |
18 x 13 mm | 14.2 carat | 18 x 13 mm | 12 carat | ||
20 x 15 mm | 20.3 carat | 20 x 15 mm | 17.3 carat | ||
25 x 18 mm | 52.2 carat | 22 x 15 mm | 18.7 carat | ||
25 x 18 mm | 30.6 carat | ||||
30 x 22 mm | 54.5 carat |
Mass-produced jewelry settings come in standard gem sizes.
If a gem won’t fit in a standard setting, you should have a setting custom made.